Yamaha 4 HP Tiller Outboard Motor - F4 - 2026

The Yamaha F4 is a compact and portable 4 - stroke outboard that mirrors the performance of the OHV F6, with the same ergonomic design and proven reliability. Lightweight, fuel - efficient, and easy to transport, it features a built - in fuel tank with optional connection to an external tank for extended range. With smooth, quiet performance and effortless starting, the F4 is the perfect choice for tenders, inflatables, and small fishing boats.

Features:

• Tiller handle control with Forward - Neutral - Reverse shifting and ergonomic twist - grip throttle
• Lightweight at only 59 lbs (15" shaft model, dry weight)
• Built - in decompression device for easier manual starting
• Solid 6A alternator for reliable battery charging (charging kit required, sold separately)
• 3 - way storage positions (starboard, front, or port side down)
• Integral 1.1 L fuel tank with external fuel tank compatibility for extended range
• Thermostatically controlled cooling system for consistent engine temperature
• Ultra - low emission, CARB 3 - Star rating

Specifications:

• Engine Type: 4 - Stroke, 1 Cylinder
• Displacement: 139 cc (8.48 cu.in.)
• Bore & Stroke: 2.44" x 1.81" (62 x 46 mm)
• Full Throttle RPM Range: 4000 - 5000
• Alternator Output: 12V, 72W, 6A
• Dry Weight Range: 59 lbs
• Rated Power: 4 HP
• Fuel Delivery: Carburetor
• Steering Type: Tiller
• Shaft Length: 15", 20"
• Starting System: Manual
• Cooling System: Water - cooled with thermostat
• Ignition System: CDI
• Exhaust: Above propeller
• Lubrication System: Wet sump
• Oil Capacity: 0.6 L
• Trim Range: - 4° through +16°
• Tilt Range: 69°
• Gear Ratio: 2.08:1
• Gear Shift: F - N - R
• Standard Propeller Type: 3 - Blade Aluminum (7 1/2" x 7")
• Oil Pressure Alert: No
• Temperature Alert: No
• Rev Limiter: Yes
• Fuel Tank Capacity: 1.1 L (0.29 gal) internal, external fuel tank capable (not included)
• Factory Warranty: 3 years. Warranty begins on date of purchase

Owner's Manual (4.18 MB)